Hi, I had the same issue with an RTS525A. "mmc0: error -110 whilst initialising SD card"
PC: Dell XPS 9570 OS: Ubuntu 19.04, Linux 5.0.0-15-generic SD CARD: SanDisk 128Go SDXC V30, U3, 95 mb/s Some really good dev found at fist a nice workaround that work fine for me: https://patchwork.kernel.org/patch/11088719/ And here there a final patch to try: https://patchwork.kernel.org/patch/11116271/ Here, the topic on bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=202473 Big thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1810416 Title: SD card error mmc0: error -110 whilst initialising SD card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1810416/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs